I did the backlight resistor mod on my Rev 1 QMX and it's not exhibiting the weird backlight-never-off problem that my Rev 4 is as detailed in my earlier post...
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Do I have some sort of fault on my rev 4?
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Both are drawing ~96mA at 12.0V in RX with the backlight enabled. Operationally the Rev 4 seems fine but I have noticed that when doing the firmware update, the Rev 4 does not immediately reboot on its own after copying the firmware file in... it takes it about ~30s for the "drive" to disconnect and then I have to power cycle it. My rev. 1 doesn't do this, it immediately reboots after copying the firmware in. The encoder "glitchiness" seems slightly worse on the Rev 4 (bounces forward/backward when scrolling through menu items). I've done a factory reset and that doesn't change any of this behavior.
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73
Andrew KI7FXL
Andrew KI7FXL